Beylerbey Mahmud of Hamadan

Bey Mahmud of Tabriz (1072-) was the eldest son of Malik Shah, and was the bey of Tabriz from 1078.

Biography
Mahmud was born in 1072 to a Sunni Muslim Turkish family. He was the son of Malik Shah by an unknown mother who died before 1076. Mahmud was the eldest of Malik Shah's sons, but after 1078 he contended with his new younger brother Bey Alp Arslan of Esfahan over the title of crown prince. The two brothers were each gifted with appointments as beys of certain places, and the title of heir switched between the two repeatedly. Mahmud fell out of favor with his father, who favored Alp Arslan, the son of his educated wife Sultana Golshan of Great Seljuk, over Mahmud, whose mother was unknown. However, Mahmud still liked his father, although the feelings were not mutual.